14. Camryn Jones is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift 3% of all welds done will be substandard. If Smith checks 400 of the 8500 welds completed during the afternoon shift: a) What is the probability that he will find less than 30 substandard welds? b) What is the probability that he will find between 10 and 30 substandard welds? c) What is the probability that he will find 20 or more substandard welds?

14. Camryn Jones is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift 3% of all welds done will be substandard. If Smith checks 400 of the 8500 welds completed during the afternoon shift: a) What is the probability that he will find less than 30 substandard welds? b) What is the probability that he will find between 10 and 30 substandard welds? c) What is the probability that he will find 20 or more substandard welds?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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